Yarn wetting agent



Patented Sept. 29, 1936 UNITED STATES PATENT OFFICE signor V to Ohemisclie Fabrik Pctt a G. m. b. 11., lirna copits, Germany No Drawing. Application July 24, 1934, Serial Germany No. 736,804. In

Jill! 17, 1933 2 Claims. (CL 252-1) In the art of yarn wetting which serves for the purpose of imparting the prescribed legal degree of wetness to vegetable, animal and artificial spun or spinning fibers, it is of importance to use 5 a wetting water having as high a wetting and penetration power as possible, in order to obtain a high working speed and avoid local overmoistening of the mass for instance when continuously working devices with sprinkling nozzles are used. Therefore, special wetting agents are added to the wetting water, which for textiletechnical reasons should be as pure as possible (mineral-free condensed or distilled water) and also disinfectants are addded, in order to avoid the formation of mould in the spinning fibers when the same are stored for a longer time in closed packages. The wetting of textile fibers and other materials was hitherto preferably performed with alkylated aromatic sulionic acids 0 and mineral oil sulionic acids or the alkaline salts of the same, but it has been found, that in electrolyte-free solutions and particularly in solutions which are free from alkaline earths the capillary activity of such agents is highly reduced 5 and frequently almost totally disappears. It is known to increase the wetting power 0! baths for textile treatments by adding alkali or magnesium salts to the said wetting agents, but in the case of yarn wetting this expedient can 30 not be used, since the yarn fibers must be kept tree from undesired mineral constituents.

It has now been found, that yarn wetting agents with a surprisingly high wetting power in pure water are obtained when the alkali salts (includ- 35 ing the ammonium salts) oi alkylated aromatic sulionlc acids and mineral oil sulionlc acids are replaced by salts of poly-amino bases (including diamino bases) and the said acids; It is of course for this purpose not possible to use amine bases 40 which are dimcultly soluble or easily decom blc or which on account oi other properties, such as odor or color, are unsuited for use for textile treatments.

The novel yarn wetting agents can also be mixed with disinfectants of various kinds, for instance formaline, para-formaldehyde and chlorocresol or the like. Also in economical respect the novel wetting agents are advantageous, since 5 cheap solvents can be used for the same.

Example 1 Commercial diiso propyl naphthaline sulionic acid is in aqueous dilution neutralized to 10 litmus with ethylene diamine and mixed with 10% 0! commercial iormaline (40%) and the finished mixture is dissolved in oil-free condensed water in an amount ranging between 1 and 1.5%. 15

Example 2 A mineral oil sulionic acid, obtained by extracting so-called acid resin with a solvent which is insoluble in water, is in 20% aqueous dilution neutralized with urea. 10% of chlorocresol are dissolved in the solution and the mixture is used as disclosed in Example 1,

It is of course also possible to use mixtures of the various substances named.

'1. A composition of matter adapted for use as a yarn wetting agent and consisting of salts of polyamino bases and capillary active alkylated aromatic sulionic acids.

2. A composition of matter adapted for use as a yarn wetting agent and consisting of salts of polyamino bases and capillary active mineral oil suli'onic acids.

I'RIEDRICH POSPIECH. 

